Numbers 29:22 Midrash

וּשְׂעִ֥יר חַטָּ֖את אֶחָ֑ד מִלְּבַד֙ עֹלַ֣ת הַתָּמִ֔יד וּמִנְחָתָ֖הּ וְנִסְכָּֽהּ׃ (ס)

and one he-goat for a sin-offering; beside the continual burnt-offering, and the meal-offering thereof, and the drink-offering thereof.

Read midrashic interpretation of Numbers 29:22: and classical rabbinic exegesis.